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Presented by: Lis Klute and Bill Zeman Contra Costa County Public Works Department

Contra Costa County Orthophoto Project Coordinated Partnership of CCC, CC Clean Water Program, Iron House and Central CC Sanitation District. Presented by: Lis Klute and Bill Zeman Contra Costa County Public Works Department HJW GeoSpatial, Inc. Topics:. Why Ortho Photos

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Presented by: Lis Klute and Bill Zeman Contra Costa County Public Works Department

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  1. Contra Costa County Orthophoto ProjectCoordinated Partnership of CCC, CC Clean Water Program, Iron House and Central CC Sanitation District Presented by: Lis Klute and Bill Zeman Contra Costa County Public Works Department HJW GeoSpatial, Inc.

  2. Topics: • Why Ortho Photos • Return On Investment • Contra Costa Project • Lessons Learned • Summary Slide 2

  3. Why Capture Ortho Photos? Capture Data to Support Your GIS needs: Drainage Inventory Watershed Modeling & Analysis Environmental & Resource Studies Capital Improvements Inventories Emergency Services Facilities Management Slide 3

  4. Return On Investment • Improve Quality / Quantity of Information •  Provide framework to develop foundation GIS layers and a spatial reference • Increase Efficiency & Public Service •  Perform Inventories, modeling, area analysis, and planning • Leverage Data Investments •  Multiple uses of orthophoto base map, less cost for return flights • Promote Community Through Internet Access • Orthos easily available via the internet and VERY popular Slide 4

  5. Project Initiation • Form Partnerships • Define the project priority areas • Define Technical Specifications • Define Funding Plan • Identify Project Schedule • Select Vendor via RFP Process • Define Scope of Work • Clarify any open issues and expectations Slide 5

  6. ProjectMethodology 1. Project Initiation Meeting 2. Aerial Photography & GPS 3. Aerotriangulation 4. Digital Mapping 5. Digital Orthophotography 6. Delivery & Support Slide 6

  7. Delivery, Support & Updates • Deliverables Digital Orthophotos Tiff and MR SID Compression Centerlines & Contours Multiple Formats • Ongoing support How to Use Imagery Fulfillment Web Serving • Updates Will Set Up Program Fly “Changed” Areas Update as Needed Slide 7

  8. Lessons Learned and Other Advise • Work with Vendor to identify issues that may arise related to Expectations up front • Keep Project Partners Up to Date Weekly • Try to set a realistic schedule and understand this may shift due to weather or other technical Issues • Budget to QA/QC extensively when providing varied formats • Work out Delivery Costs Up Front • Define How Data Orders will be Fulfilled and Who will Fill Them • Use the Internet and FTP if Possible • Give the Data Away if at all Possible, but make it a group decision – Contra Costa is selling the data to cover the cost of re-flying. Slide 8

  9. For More Information • Lis Klute GIS Coordinator – Contra Costa County – Public Works Department Tel: 925.313.2174 E-mail: eklute@pw.co.contra-costa.ca.us • Bill Zeman • Manager - Consulting and Development Services Tel: 510.638.6122 E-mail: zeman@hjw.com County WEB GIS Viewer Application http://contra-costa.gatekeeper.com Slide 9

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